code: def test_get_output_shape_for(self, layer):
      shape = Mock()
      assert layer.get_output_shape_for(shape) == shape
  
imports: from mock import Mock
  import numpy
  import pytest
  import theano
label_desc: Use image node_id 4 for calling the TestLayer obj's underlying member method code with example usage: obj.test_get_output_shape_for(layer) without return types